Back design for a golf club iron head



FIG. 1 is a perspective view of our new design for the back design for a golf club iron head,

FIG. 2 is an elevation of FIG. 1;

FIG. 3 is a cross-section of the design of FIG. 1, taken along the 3—3 line in FIG. 2;

FIG. 4 is a cross-section of the design of FIG. 1, taken along the 4—4 line of FIG. 2;

FIG. 5 is a cross-section of the design of FIG. 1, taken along the 5—5 line of FIG. 2; and,

FIG. 6 is a cross-section of the design of FIG. 1, taken along the 6—6 line of FIG. 2.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for the back design for a golf club iron head, as shown and described. 